|
Traffic indicators examined for GIS-based LUR models. |
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| Indicator type |
Indicator |
Units |
|
|
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| Cumulative density scores: |
Unweighted density within: 50, 100, 200, 300, 500 m buffers |
Vehicle-meters/per day/m2 |
| Kernel-weighted density: 50, 100, 200, 300, 500 m buffers |
Vehicle-meters/per day/m2 |
|
| Density of urban roads (> 8500 cars/day) within 200 m |
Vehicle-meters/per day/m2 |
|
| Summary measures: |
Total roadway length within: 50, 100, 200, 300, 500 m |
Meters |
| Total ADT*Length (VMT) within 200 m |
Vehicle-meters per day |
|
| Distance-based measures: |
Distance to nearest urban road (>8500 cars/day) |
Meters |
| To nearest major road (>13,000 cars/day) |
Meters |
|
| To nearest highway (>19,000 cars/day) |
Meters |
|
| To nearest MHD-designated truck route |
Meters |
|
| Characteristics of nearest major road: |
Average daily traffic (ADT) |
Vehicles/day |
| ADT/Distance to major road |
(Vehicles/day)/m |
|
| Diesel fraction |
Percent (%) |
|
| Trucks per day |
Vehicles/day |
|
| Trucks/Distance to major road |
(Vehicles/day)/m |
|
Clougherty et al. Environmental Health 2008 7:17 doi:10.1186/1476-069X-7-17 |
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